#include <stdio.h>
#include <stdlib.h>
void transform(){
	char *a=(char *)malloc(sizeof(char *));
	int count=0;
	for (int i=0;i<100;i++){
		*(a+i)=getchar();
		if(*(a+i)=='\n')
			break;
		count++;
	}	
	for (int j=0;j<count;j++){
		if(*(a+j)=='y'||*(a+j)=='z'){
			*(a+j)=(*(a+j)+2-'a')%26+'a';
			putchar(*(a+j));
			continue;
		}
		else{
			putchar(*(a+j)+2);
		}
	}
	
} 

int main (void){
	transform();
	return 0;
}
